Mozilla firefox 16 released

Firefox on Mac OS X now has preliminary VoiceOver support turned on by default
Initial web app support (Windows/Mac/Linux)
Acholi and Kazakh localizations added
Improvements around JavaScript responsiveness through incremental garbage collection
New Developer Toolbar with buttons for quick access to tools, error count for the Web Console, and a new command line for quick keyboard access
CSS3 Animations, Transitions, Transforms and Gradients unprefixed in Firefox 16
Recently opened files list in Scratchpad implemented
Fixes:

Debugger breakpoints do not catch on page reload
No longer supporting MD5 as a hash algorithm in digital signatures
Opus support by default
Reverse animation direction has been implemented
Per tab reporting in about:memory
User Agent strings for pre-release Firefox versions now show only major version

Security fixes:

Use-after-free in the IME State Manager
Heap memory corruption issues found using Address Sanitizer
Use-after-free, buffer overflow, and out of bounds read issues found using Address Sanitizer
Spoofing and script injection through location.hash
Chrome Object Wrapper (COW) does not disallow acces to privileged functions or properties
top object and location property accessible by plugins
GetProperty function can bypass security checks
Crash with invalid cast when using instanceof operator
DOS and crash with full screen and history navigation
Reader Mode pages have chrome privileges
Some DOMWindowUtils methods bypass security checks
Continued access to initial origin after setting document.domain
select element persistance allows for attacks
Miscellaneous memory safety hazards (rv:16.0/ rv:10.0.8)